| Message ID | 20230727080502.77895-16-zhengqi.arch@bytedance.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | use refcount+RCU method to implement lockless slab shrink | expand |
On 2023/7/27 16:04, Qi Zheng wrote: > Use new APIs to dynamically allocate the nfs-acl shrinker. > > Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> > Reviewed-by: Muchun Song <songmuchun@bytedance.com> > --- > fs/nfs/super.c | 20 ++++++++++++-------- > 1 file changed, 12 insertions(+), 8 deletions(-) > > diff --git a/fs/nfs/super.c b/fs/nfs/super.c > index 2284f749d892..072d82e1be06 100644 > --- a/fs/nfs/super.c > +++ b/fs/nfs/super.c > @@ -129,11 +129,7 @@ static void nfs_ssc_unregister_ops(void) > } > #endif /* CONFIG_NFS_V4_2 */ > > -static struct shrinker acl_shrinker = { > - .count_objects = nfs_access_cache_count, > - .scan_objects = nfs_access_cache_scan, > - .seeks = DEFAULT_SEEKS, > -}; > +static struct shrinker *acl_shrinker; > > /* > * Register the NFS filesystems > @@ -153,9 +149,17 @@ int __init register_nfs_fs(void) > ret = nfs_register_sysctl(); > if (ret < 0) > goto error_2; > - ret = register_shrinker(&acl_shrinker, "nfs-acl"); > - if (ret < 0) > + > + acl_shrinker = shrinker_alloc(0, "nfs-acl"); > + if (!acl_shrinker) > goto error_3; Here should set ret to -ENOMEM, will fix. > + > + acl_shrinker->count_objects = nfs_access_cache_count; > + acl_shrinker->scan_objects = nfs_access_cache_scan; > + acl_shrinker->seeks = DEFAULT_SEEKS; > + > + shrinker_register(acl_shrinker); > + > #ifdef CONFIG_NFS_V4_2 > nfs_ssc_register_ops(); > #endif > @@ -175,7 +179,7 @@ int __init register_nfs_fs(void) > */ > void __exit unregister_nfs_fs(void) > { > - unregister_shrinker(&acl_shrinker); > + shrinker_free(acl_shrinker); > nfs_unregister_sysctl(); > unregister_nfs4_fs(); > #ifdef CONFIG_NFS_V4_2
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 2284f749d892..072d82e1be06 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -129,11 +129,7 @@ static void nfs_ssc_unregister_ops(void) } #endif /* CONFIG_NFS_V4_2 */ -static struct shrinker acl_shrinker = { - .count_objects = nfs_access_cache_count, - .scan_objects = nfs_access_cache_scan, - .seeks = DEFAULT_SEEKS, -}; +static struct shrinker *acl_shrinker; /* * Register the NFS filesystems @@ -153,9 +149,17 @@ int __init register_nfs_fs(void) ret = nfs_register_sysctl(); if (ret < 0) goto error_2; - ret = register_shrinker(&acl_shrinker, "nfs-acl"); - if (ret < 0) + + acl_shrinker = shrinker_alloc(0, "nfs-acl"); + if (!acl_shrinker) goto error_3; + + acl_shrinker->count_objects = nfs_access_cache_count; + acl_shrinker->scan_objects = nfs_access_cache_scan; + acl_shrinker->seeks = DEFAULT_SEEKS; + + shrinker_register(acl_shrinker); + #ifdef CONFIG_NFS_V4_2 nfs_ssc_register_ops(); #endif @@ -175,7 +179,7 @@ int __init register_nfs_fs(void) */ void __exit unregister_nfs_fs(void) { - unregister_shrinker(&acl_shrinker); + shrinker_free(acl_shrinker); nfs_unregister_sysctl(); unregister_nfs4_fs(); #ifdef CONFIG_NFS_V4_2